CVE-2026-48936: CWE-284 Improper Access Control - Generic in nodejs node
CVE-2026-48936 is a low severity vulnerability in Node.js version 26.3.0 where a flaw in the Permission API allows a local server to be started via a Unix domain socket without requiring the `--allow-net` permission. This improper access control issue could lead to unintended local network service availability.
AI Analysis
Technical Summary
This vulnerability involves improper access control (CWE-284) in the Node.js Permission API. Specifically, it allows a local server to be started through a Unix domain socket even when the `--allow-net` permission is not granted. The issue affects Node.js version 26.3.0. The CVSS v3.0 base score is 3.3, indicating low severity, with attack vector local, low attack complexity, low privileges required, no user interaction, unchanged scope, no confidentiality or availability impact, and limited integrity impact.
Potential Impact
The impact is limited to local privilege scenarios where a local user or process can start a server via Unix domain socket without proper permission checks. There is no confidentiality or availability impact, and the integrity impact is low. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround is currently documented. Users should monitor Node.js advisories for updates addressing this issue.
CVE-2026-48936: CWE-284 Improper Access Control - Generic in nodejs node
Description
CVE-2026-48936 is a low severity vulnerability in Node.js version 26.3.0 where a flaw in the Permission API allows a local server to be started via a Unix domain socket without requiring the `--allow-net` permission. This improper access control issue could lead to unintended local network service availability.
CVSS v3.0
Score 3.3low
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves improper access control (CWE-284) in the Node.js Permission API. Specifically, it allows a local server to be started through a Unix domain socket even when the `--allow-net` permission is not granted. The issue affects Node.js version 26.3.0. The CVSS v3.0 base score is 3.3, indicating low severity, with attack vector local, low attack complexity, low privileges required, no user interaction, unchanged scope, no confidentiality or availability impact, and limited integrity impact.
Potential Impact
The impact is limited to local privilege scenarios where a local user or process can start a server via Unix domain socket without proper permission checks. There is no confidentiality or availability impact, and the integrity impact is low. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround is currently documented. Users should monitor Node.js advisories for updates addressing this issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- hackerone
- Date Reserved
- 2026-05-26T15:00:06.427Z
- Cvss Version
- 3.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a3dd65f4853345fc1fa2e37
Added to database: 06/26/2026, 01:31:11 UTC
Last enriched: 06/26/2026, 01:46:31 UTC
Last updated: 06/26/2026, 01:46:31 UTC
Views: 3
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